capPaletteAuto
The capPaletteAuto
macro requests that the capture driver sample video frames and automatically
create a new palette. You can use this macro or explicitly call the WM_CAP_PAL_AUTOCREATE message.
BOOL capPaletteAuto(
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hwnd, |
|
|
iFrames, |
|
|
iColors |
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|
); |
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Parameters
hwnd
Handle of a
capture window.
iFrames
Number of
frames to sample.
iColors
Number of
colors in the palette. The maximum value for this parameter is 256.
Return Values
Returns TRUE
if successful or FALSE otherwise.
If an error
occurs and an error callback function is set using the capSetCallbackOnError macro, the error callback
function is called.
Remarks
The sampled
video sequence should include all the colors you want in the palette. To obtain
the best palette, you might have to sample the whole sequence rather than a
portion of it.
See Also